Wax-pot.



F. E. VALOIS.

WAX POT.

APPLICATION FILED MAY23 l9l6.

1,23%,869. Patented Aug. 7, 1917.

FELIX I]. VALOIS, OF HAVEBHILL, MASSACHUSETTS, ASSIGNOR TO HAMEL SHOE MACHINERY COMPANY, OF LYNN, MASSACHUSETTS, A CORPORATION OF MASSA- 1 CHUSETTS.

WAX-POT.

Appllcatlon'flled May 23, 1916. Serial No. 99,461.

To all whom it may concern:

- Be it known that I, FELIX E. Know, a citizen of the United States, residing at Haverhill, county of Essex, State of Massachusetts, have invented a certain new and useful Improvement in Wax-Pots, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention has for its object a new and improved wax pot for use on shoe sewing machines. In machines of this character it is customary to employ a wax pot into which,

is put a ball or cake of solid wax and which is continuously subjected to heat to main tain the wax in the wax pot,'in a melted condition suitable for application to the thread.

The thread passes around a thread guide located near the bottom of the wax pot at a depth sufficient to insure the thread being thoroughly permeated with thehot wax. In

the operation of shoe sewing machines, it is frequently necessary for the operator to rethread the wax pot, and to do so he must pass around the thread guide which is located in the bottom of the wax pot. It will be understood that this is a diflicult task since the wax is hot, that it takes time and that the operator frequently gets wax on his hands which results in injury to the shoes, particularly if he is working on White or light colored shoes.

Difficulty is also experienced from the fact that the heat applied to the .Wax in the pot is sometimes so great as to cause the wax to boil and bubble or boil over.

Wax pots as heretofore constructed have also been diflicult to clean as is necessary when the old wax has become cooked or dirty.

The wax pot embodying my invention is so constructed that the thread guide at the bottom of the pot and the pot itself are movable relatively to each other, so that when it is necessary to rethread the wax pot, the thread guide may then be placed at a position above the level of the wax in the pot and the thread replaced in the proper posi-' tion without the operator soiling his hands. It is also so constructed that the ball or cake of solid wax is located in a chamber which is subjected to heat on one side only so that the ball or cake of wax melts on that sideand thence runs into another portion of the wax pot in which it is maintained at the proper temperature-to be applied to the Patented Aug. 7, 1917.

thread. The heat is applied only to a small portion of the wax pot and the remainder of the wax pot containing the ball of wax suffices to carry off and radiate the surplusheat so that the wax in the heated portion of the wax pot will never boil thus doing away withall difficulties, such as boiling, and the like.

The invention will be fully understood when taken in connection with the accompanying drawings and the novel features thereof will be pointed out and clearly defined in the claims at the close of this specification.

Referring to the drawings, Figure 1 is a top plan view of a wax pot embodying my invention together with the adjacent portions of the shoe sewing machine.

Fig. 2 is a section on line 2-2 of Fig. 1 looking in the direction of the arrows, the parts in the interior of the wax pot being in elevation for convenience of illustration.

Fig. 3 is a section on line 3 3 of Fig. 2 looking in the direction of the arrows, the parts in the interior of the wax pot being also shown in elevation.

, Fig. 4 is a rear view of the wax pot and heating chamber. I r

Referring now to the drawings at A is shown a portion'of the frame of the madevice and the wax pot. The thread guide comprises a tension wheel C- the tension being controlled by the usual knurled wheel D and spring E. At 10 is shown the fixed thread guide located near the bottom of the wax pot 11. This thread guide comprises a spool 10 (see Fig. 3) shown in the drawings as non-rotating, carried on the lower end of a square sliding rod 12 the upper end of. which passes through a hub 13' on a portion 14 of the bracket B. At 15 is shown a set screw by means of which the rod 12 issecured in place. By loosening this set screw 15, the rod 12 is released so that it may be pulled up out of the wax I the pot, it being then possible to place bracket 14 and'on leaving the wax pot' is guided by a thread guide 17 which removes the surplus wax.

The wax pct 11 comprises two chambers a, b separated from each other by a partition or dam 18, this partition or dam is perforated to permit the flow-of wax from the chamber ato the chamber 12 The chamher 6 is of relatively small capacity and is heated by suitable means 19 shown in the drawings as a steam space which is normally adjacent one wall of the chamber 6. Being thus located, the heating means does not communicate heat directly to the chamber a. The ball or cake of wax is placed in the chamber a and the heat from the chamber 1) acts on the side of the ball which is next the chamber 6 and melts a portion of it causing the melted wax to run past the dam 18 into the chamber 6. The wax pot 11 is itself pivoted by means of a screw threaded stud 20 to the lower end of the bracket B and is secured thereto by means of a nut having a handle 21 thereon. When it is desired to empty the melted wax out of a wax pot or to clean the wax pot, the wax pot is loosened from the bracket by turning the handle 21 and the pot is then swung about the pivot 20. The thread. guide 10 having been previously lifted up to the highest possible position the edge of the wax pot is then free and may be turned to any desired angle or may be detached and removed, if desired.

If it is desired to have additional heat applied to the wax as may be necessary in cold weather, the wax pot may be swung slightly about its pivot 20, to bring the wall a of the chamber a into contact with the adjacent surface of the heater 19 so that heat will then pass directly to the chamber a in the wax pot.

From the foregoing, it will be seen that when it is necessary to rethread the mai,aee,eao

chine, the thread guide 10 may be lifted out of the wax, the thread put in' position and the thread guide replaced without soiling the hands. It will also be seen that heat is applied directly only to that portion of the wax which has melted from the ball and has run down into the chamber 6, also that the excess of heat is radiated by the walls of the chamber a so that it is practically impossible to a ply suficient heat to the wax in the cham er I) to cause it to boil.

What I claim is:-

1. In combination with the frame of a machine, a wax pot movably mounted thereon, a thread guide supported in such manner that it is normally in the wax pot below the level of the wax but movable to a point above the wax pot to permit the wax pot to above the wax pot to permit the wax pot to be swung about its said pivot.

'3. In combination a movable wax pot, a

heater containing a steam space, said heater being outsidethe wax pot and adjacent thereto, said wax pot being movable to vary the amount of surface in contact with the heater.

4:. In combination, a wax pot comprising two chambers having a passage from the lower part of one chamber to the other chamber, a heater acting directly on one chamber, and indirectly on the other chamher, said wax pot being movable to bring said second chamber into varying relation to the heater and thereby vary the degree of heat in the said second chamber.

In testimony whereof I aflix my signature.

FELIX E. VALOIS. 

